Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
アンチ・ブレーキロック制御システムに用いられる回路構成
Document Type and Number:
Japanese Patent JP3566310
Kind Code:
B2
Abstract:
This is a circuit configuration provided for an anti-lock-controlled brake system and serving for processing sensor signals obtained by wheel sensors (5) and for generating braking pressure control signals. This circuit configuration contains two microcontrollers (1, 2) interconnected by data exchange lines (7). The handled signals are concurrently processed by the microcontrollers independently of one another and the exchanged signals are checked for consistency. A deviation of the exchanged signals which is due to malfunctions is signalized to a safety circuit (8) which, thereupon, interrupts the power supply to the solenoid valves (Ll . . . Ln). The monitoring signal (WD1, WD2) fed to the safety circuit (8) is a predetermined alternating signal in case of consistency of the exchanged signals and in case of proper operation of the circuit configuration. The safety circuit (8) compares the alternating signal with a time standard derived from a clock generator (TG2, TG3) which is independent of the operating cycle (TG1) of the microcontrollers (1,2). A change in the alternating signal, as well as a failure in the time standard, causes a cut-off of power supply and, hence, of anti-lock control.

Inventors:
Hans-Wilhelm Breckmann
Heinz Lorec
Michael zidek
Hermann Eselbrügge
Application Number:
JP2211391A
Publication Date:
September 15, 2004
Filing Date:
February 15, 1991
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ALFRED TEVES GESELLSCHAFT MIT BESCHRANKER HAFTUNG
International Classes:
B60T8/92; B60T8/1761; B60T8/62; B60T8/88; B60T17/22; (IPC1-7): B60T8/92
Domestic Patent References:
JP59130768A
JP61267140A
JP58501027A
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Atsushi Tsuboi
Ryo Hashimoto
Toshio Shirane